Toshiba VF-AS1 instruction manual Description of terminals, Main circuit terminals

E6581301

2.3Description of terminals

2.3.1Main circuit terminals!

This diagram shows an example of wiring of the main circuit. Use options if necessary.

■Power supply and motor connections

Power supply!

	No-fuse
2
	breaker!
	￿

! VF-AS1! !

Connect the power				Connect the motor
cables to RL1, S/L2,				cables to U/T1, V/T2
and T/L3. !				and W/T3. !
								Motor!
	R/L1!	S/L2!	T/L3!		U/T1!	V/T2!	W/T3!

E!

■Connection with peripheral equipment

￿

No-fuse Magnetic breaker! contactor!

Power supply!

	High-attenuation			Surge
Input AC	radio noise
reactor!	reduction filter !			suppressing filter!
	R/L1!	Inverter!	U/T1!	Motor!
	S/L2!		V/T2!	IM!
	T/L3!		W/T3!
	PA/+!P0!		PA! PB!	Zero-phase
				reactor￿
Simplified
radio noise
filter!
				Note: Connect a braking unit
				between the terminals PA/+
				and PC/-, if necessary.!
	DC reactor !	Braking resistor		[Note]!

■ Main circuit

Terminal symbol		Terminal function
	Grounding terminal for inverter casing
R/L1, S/L2, T/L3	Power input terminal!
	200V class:		400V class:
(R/L1.1, S/L2.1, T/L3.1,
	0.4~75kW Three-phase 200~240V-50/60Hz		0.75~90kW	Three-phase 380~480V-50/60Hz
R/L1.2, S/L2.2, T/L3.2)
			110~500kW	Three-phase 380~440V-50Hz
*1
				Three-phase 380~480V-60Hz
U/T1, V/T2, W/T3	Connect to a (3-phase induction) motor.
PA/+, PB	Connect a braking resistor.
	Change the parameters ￿￿, ￿￿￿ and ￿￿￿￿ if necessary.
(PA, PB) *2
	200kW models and larger are not equipped with terminal PB.
	This is a negative potential terminal in the internal DC main circuit. DC power supply can be input
PC/-	across the PA/+ terminals (positive potential). (For 200V-18.5kW or more models, and 400V-22kW
	or more models, an optional circuit is needed to suppress a rush current.)
	Terminals for connecting a DC reactor (DCL: optional external device). Shorted by a short bar
PO, PA/+	when shipped from the factory (200V: 45kW or smaller, 400V: 75kW or smaller). Before installing
	DCL, remove the short bar. (The rating of 400V-355~500 kW have the double terminals of PO.)
	200V class: 75kW	400V class:110kW~500kW
RO, SO, TO	Inverter’s cooling fan power input terminals. When using a DC power supply, connect three-phase
	power cables. When using DC power for the main circuit, be sure to connect a three-phase power
	supply to these terminals. For more information, refer to 10.6.5.

*1: Value in ( ) 400V-355~500kW.

*2: Value in ( ) 200V-55kW or larger, 400V-90~160kW.

B-10